If you keep having tan colored stool it means: poor liver function there is a fantastic cure for that: the liver salad.
Furthermore, liver malfunction often involve potassium deficiency, avocado and Celery are rich in potassium.
I would get a lot of tan colored bm along with the psyllium, the color of the psyllium influencing, but still - eveb thought there is not as much to worry about if you are taking psyllium, I would still recommend the cleansing salad. It is the salad dresssing in the cleansing salad that helps a great deal - it provokes a mini Liver Flush (bile flush thus imporved digestion - and - brand new bile) So well, I now use this dressing with many veggies (just to get a change form carrot). Of course carrots are fantastic due to the caroten they contain.